67 lines
2.3 KiB
Rust
67 lines
2.3 KiB
Rust
use procfs::process::{FDTarget, Process};
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use rustix::fs::AtFlags;
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use std::path::Path;
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fn main() {
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let myself = Process::myself().unwrap();
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let mountinfo = myself.mountinfo().unwrap();
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for lock in procfs::locks().unwrap() {
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lock.pid
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.and_then(|pid| Process::new(pid).ok())
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.and_then(|proc| proc.cmdline().ok())
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.and_then(|mut cmd| cmd.drain(..).next())
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.map_or_else(
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|| {
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print!("{:18}", "(undefined)");
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},
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|s| {
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let p = Path::new(&s);
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print!("{:18}", p.file_name().unwrap_or(p.as_os_str()).to_string_lossy());
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},
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);
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print!("{:<12} ", lock.pid.unwrap_or(-1));
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print!("{:12} ", lock.lock_type.as_str());
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print!("{:12} ", lock.mode.as_str());
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print!("{:12} ", lock.kind.as_str());
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// try to find the path for this inode
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let mut found = false;
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if let Some(pid) = lock.pid {
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if let Ok(fds) = Process::new(pid).and_then(|p| p.fd()) {
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for f in fds {
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let fd = f.unwrap();
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if let FDTarget::Path(p) = fd.target {
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if let Ok(stat) = rustix::fs::statat(&rustix::fs::cwd(), &p, AtFlags::empty()) {
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if stat.st_ino as u64 == lock.inode {
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print!("{}", p.display());
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found = true;
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break;
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}
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}
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}
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}
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}
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}
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if !found {
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// we don't have a PID or we don't have permission to inspect the processes files, but we still have the device and inode
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// There's no way to look up a path from an inode, so just bring the device mount point
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for mount in &mountinfo {
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if format!("{}:{}", lock.devmaj, lock.devmin) == mount.majmin {
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print!("{}...", mount.mount_point.display());
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found = true;
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break;
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}
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}
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}
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if !found {
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// still not found? print the device
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print!("{}:{}", lock.devmaj, lock.devmin);
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}
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println!();
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}
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}
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